Best Offster Rockers for RPM

pittsburghracer said

I can’t remember the last time I ran one that small. Lol pretty sure my cams were bigger than that in the 1970’s.

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I meant as in what's big enough to make 500 hp with your 290 cfm example.

To me 240-250 is average street strip size, was wondering if that be enough in this case.